EP1892459A4 - Lighting device and liquid crystal display device provided with such lighting device - Google Patents

Lighting device and liquid crystal display device provided with such lighting device

Info

Publication number
EP1892459A4
EP1892459A4 EP06731034A EP06731034A EP1892459A4 EP 1892459 A4 EP1892459 A4 EP 1892459A4 EP 06731034 A EP06731034 A EP 06731034A EP 06731034 A EP06731034 A EP 06731034A EP 1892459 A4 EP1892459 A4 EP 1892459A4
Authority
EP
European Patent Office
Prior art keywords
light
lighting device
light emitting
emitting element
liquid crystal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06731034A
Other languages
German (de)
French (fr)
Japanese (ja)
Other versions
EP1892459B1 (en
EP1892459A1 (en
Inventor
Takashi Yamazoe
Keiichi Nagano
Yuichi Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Seiki Co Ltd
Original Assignee
Nippon Seiki Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Seiki Co Ltd filed Critical Nippon Seiki Co Ltd
Publication of EP1892459A1 publication Critical patent/EP1892459A1/en
Publication of EP1892459A4 publication Critical patent/EP1892459A4/en
Application granted granted Critical
Publication of EP1892459B1 publication Critical patent/EP1892459B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0112—Head-up displays characterised by optical features comprising device for genereting colour display
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Instrument Panels (AREA)
  • Led Device Packages (AREA)

Abstract

A first light emitting element (23) emits first illuminating light. A second light emitting element (24) is arranged in parallel to the first light emitting element (23), and emits second illuminating light (L2). An optical member (26) is composed of a light transmitting material provided with a first inclining plane (26a) for deflecting the first illuminating light so as to have a part of the first illuminating light overlap with a part of the second illuminating light, and a second inclining plane (26b) for deflecting the second illuminating light (L2). The first light emitting element (23) and the second light emitting element (24) are provided with light emitting diode chips (23c, 24c) and fluorescent bodies (23d, 24d) for performing wavelength conversion to the light emitted from the light emitting diode chips (23c, 24c), respectively.
EP06731034A 2005-04-26 2006-04-04 Lighting device for a liquid crystal display device Expired - Fee Related EP1892459B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005127874A JP4962685B2 (en) 2005-04-26 2005-04-26 LIGHTING DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE HAVING THE LIGHTING DEVICE
PCT/JP2006/307086 WO2006117960A1 (en) 2005-04-26 2006-04-04 Lighting device and liquid crystal display device provided with such lighting device

Publications (3)

Publication Number Publication Date
EP1892459A1 EP1892459A1 (en) 2008-02-27
EP1892459A4 true EP1892459A4 (en) 2009-06-03
EP1892459B1 EP1892459B1 (en) 2010-06-30

Family

ID=37307766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06731034A Expired - Fee Related EP1892459B1 (en) 2005-04-26 2006-04-04 Lighting device for a liquid crystal display device

Country Status (7)

Country Link
US (1) US20090027589A1 (en)
EP (1) EP1892459B1 (en)
JP (1) JP4962685B2 (en)
KR (1) KR20080009272A (en)
CN (1) CN100510506C (en)
DE (1) DE602006015188D1 (en)
WO (1) WO2006117960A1 (en)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5353203B2 (en) * 2007-12-18 2013-11-27 日本精機株式会社 Head-up display device
JP4811744B2 (en) * 2008-04-21 2011-11-09 日本精機株式会社 Head-up display lighting device
KR20100116883A (en) * 2009-04-23 2010-11-02 아이피씨코리아 주식회사 Light emitting device
JP5640457B2 (en) * 2009-05-25 2014-12-17 日本精機株式会社 Vehicle display device
JP5532683B2 (en) * 2009-05-29 2014-06-25 日本精機株式会社 Liquid crystal display
CN101988646A (en) * 2009-08-05 2011-03-23 富士迈半导体精密工业（上海）有限公司 Lamp
JP2011146367A (en) * 2009-10-26 2011-07-28 Nippon Seiki Co Ltd Lighting system
CN101876407A (en) * 2010-05-17 2010-11-03 中山大学佛山研究院 LED light source module
JP2012063524A (en) * 2010-09-15 2012-03-29 Nippon Seiki Co Ltd Vehicular head-up display device
CN102645717A (en) * 2011-02-17 2012-08-22 一诠精密工业股份有限公司 Method for fixing optical lens by ultraviolet (UV) adhesive
TWI435481B (en) * 2011-02-18 2014-04-21 Genesis Photonics Inc Light emitting diode device
JP5678715B2 (en) * 2011-02-23 2015-03-04 日本精機株式会社 Lighting device
JP5674032B2 (en) * 2011-03-25 2015-02-18 日本精機株式会社 Head-up display device
US8759854B2 (en) * 2011-05-24 2014-06-24 Tsmc Solid State Lighting Ltd. Bat-wing lens design with multi-die
JP5955739B2 (en) 2012-10-16 2016-07-20 カルソニックカンセイ株式会社 Light guide device
JP6229261B2 (en) * 2012-11-22 2017-11-15 岩崎電気株式会社 Light emitting element unit
JP6060691B2 (en) * 2013-01-11 2017-01-18 オムロン株式会社 Illuminated pushbutton device
KR102031549B1 (en) * 2013-03-28 2019-10-14 엘지이노텍 주식회사 Light diffusion device, and light emitting device array unit having the same
JP2015087411A (en) * 2013-10-28 2015-05-07 三菱電機株式会社 Display device
TWI485432B (en) * 2013-12-12 2015-05-21 Au Optronics Corp Display module and head up display
KR102127448B1 (en) * 2014-05-29 2020-06-26 엘지이노텍 주식회사 Light Emitting Device package
FR3029353B1 (en) * 2014-11-28 2016-12-23 Valeo Comfort & Driving Assistance BACKLIGHT DEVICE, IN PARTICULAR FOR HIGH HEAD DISPLAY AND HIGH HEAD DISPLAY FOR MOTOR VEHICLE
JP5866644B1 (en) 2014-12-26 2016-02-17 パナソニックＩｐマネジメント株式会社 Head-up display and moving body with head-up display
JP6354667B2 (en) * 2015-06-05 2018-07-11 株式会社デンソー Head-up display device
CN106549088B (en) * 2015-09-17 2018-11-16 光宝光电(常州)有限公司 Light emitting display device
JP6319355B2 (en) * 2016-02-23 2018-05-09 株式会社デンソー Head-up display device
JP6481649B2 (en) 2016-03-29 2019-03-13 株式会社デンソー Head-up display device
JP6658249B2 (en) * 2016-04-20 2020-03-04 株式会社Ｊｖｃケンウッド Virtual image display device and virtual image display method
JP2018095157A (en) * 2016-12-15 2018-06-21 アルプス電気株式会社 On-vehicle display device
JP6735476B2 (en) * 2017-05-31 2020-08-05 パナソニックＩｐマネジメント株式会社 Display device
JP6663896B2 (en) * 2017-11-02 2020-03-13 矢崎総業株式会社 Head-up display device
TW201925827A (en) * 2017-11-22 2019-07-01 英錡科技股份有限公司 Vehicular head-up display using geometrical optical structure to shield ambient light
JP7143153B2 (en) * 2018-09-03 2022-09-28 Ｎｓウエスト株式会社 DISPLAY AND HEAD-UP DISPLAY DEVICE INCLUDING DISPLAY
EP3876021B1 (en) * 2020-03-05 2023-12-06 Lumileds LLC Micro-optic for micro-led projection unit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3950254B2 (en) * 1999-03-10 2007-07-25 住友電気工業株式会社 Light emitting device
JP2001135121A (en) * 1999-11-08 2001-05-18 Nidec Copal Corp Lighting device and light guide plate for the same
JP2002062818A (en) * 2000-08-16 2002-02-28 Sony Corp Microlens and method of manufacturing image display device
JP2003110146A (en) * 2001-07-26 2003-04-11 Matsushita Electric Works Ltd Light-emitting device
JP2003295105A (en) 2002-03-29 2003-10-15 Optrex Corp Head up display
US7320531B2 (en) * 2003-03-28 2008-01-22 Philips Lumileds Lighting Company, Llc Multi-colored LED array with improved brightness profile and color uniformity
JP2005062692A (en) * 2003-08-19 2005-03-10 Internatl Business Mach Corp <Ibm> Color display device, optical element, and method for manufacturing color display device
TWI364600B (en) * 2004-04-12 2012-05-21 Kuraray Co An illumination device an image display device using the illumination device and a light diffusing board used by the devices
JP4471729B2 (en) * 2004-04-30 2010-06-02 シチズン電子株式会社 Light emitting device with liquid crystal lens
US20060087866A1 (en) * 2004-10-22 2006-04-27 Ng Kee Y LED backlight

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *

Also Published As

Publication number Publication date
CN101163916A (en) 2008-04-16
WO2006117960A1 (en) 2006-11-09
US20090027589A1 (en) 2009-01-29
JP2006310367A (en) 2006-11-09
JP4962685B2 (en) 2012-06-27
CN100510506C (en) 2009-07-08
KR20080009272A (en) 2008-01-28
DE602006015188D1 (en) 2010-08-12
EP1892459B1 (en) 2010-06-30
EP1892459A1 (en) 2008-02-27

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Inventor name: YAMAZOE, TAKASHI

Inventor name: TAKAHASHI, YUICHI

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